Science

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http://www.windows2universe.org/windows.html&edu=elem
 just like a real window to universe
http://starchild.gsfc.nasa.gov/docs/StarChild/StarChild.html
 A Learning Center for Young Astronomers
http://www.youtube.com/ignitelearning#p/f/1/y4KbyB2UnTM
 videos about scientific facts with lots of fun.